I Am Upload And Retrieve The Video But It Not Play And Didn't Show The Video Play Please Help Me I Am Doing Project......

This is my Filecs.ashx
<%@ WebHandler Language="C#" Class="FileCS" %>

using System;
using System.Web;
using System.Data.SqlClient;
using System.Configuration;
public class FileCS : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
int id = int.Parse(context.Request.QueryString["id"]);
byte[] bytes;
string contentType;
string strConnString = ConfigurationManager.ConnectionStrings["VCRConnectionString"].ConnectionString;
string name;
using (SqlConnection con = new SqlConnection(strConnString))
{
using (SqlCommand cmd = new SqlCommand())
{
cmd.CommandText = "select Name, Data, ContentType from Videos1 where id=@Id";
cmd.Parameters.AddWithValue("@Id", id);
cmd.Connection = con;
con.Open();
SqlDataReader sdr = cmd.ExecuteReader();
sdr.Read();
bytes = (byte[])sdr["Data"];
contentType = sdr["ContentType"].ToString();
name = sdr["Name"].ToString();
con.Close();
}
}
context.Response.Clear();
context.Response.Buffer = true;
context.Response.AppendHeader("Content-Disposition", "attachment; filename=" + name);
context.Response.ContentType = contentType;
context.Response.BinaryWrite(bytes);
context.Response.End();
}

public bool IsReusable
{
get
{
return false;
}
}
}